MADELINE FLAHERTY RN, FNP-BC
NPI 1619644176
Nurse Practitioner in Boston, MA
About Madeline Flaherty Rn, Fnp-bc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MADELINE FLAHERTY RN, FNP-BC (NPI 1619644176) is an individual nurse practitioner in Boston, Massachusetts, licensed in Massachusetts (RN2337528) and active in the NPI registry since August 2021. She is enrolled in Medicare PECOS, is affiliated with Massachusetts General Hospital, and is a graduate of Other (2019).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Madeline Flaherty Rn, Fnp-bc is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Madeline Flaherty reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 478 clinicians in this Medicare group
Cambridge, MA 02138
- Reassigned Medicare billing, Massachusetts enrollment
- 423 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 2
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Massachusetts General Hospital
Acute Care Hospitals · Boston, MAMassachusetts Eye And Ear Infirmary -
Acute Care Hospitals · Boston, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02114 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BOSTON, MA 02114
BOSTON, MA 02114
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Madeline Flaherty's NPI number?
The NPI number for Madeline Flaherty is 1619644176. It was assigned to this individual provider in the NPPES registry on August 24, 2021.
Where is Madeline Flaherty located?
Madeline Flaherty practices at 243 Charles St, Boston, MA 02114. The listed phone number is (617) 573-3223.
What is Madeline Flaherty's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is Madeline Flaherty enrolled in Medicare?
Yes. Madeline Flaherty is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Madeline Flaherty's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Madeline Flaherty reassigns Medicare benefits to 2 organizations: Massachusetts Eye And Ear Associates, Inc. (Boston, MA) and Mount Auburn Professional Services Inc (Cambridge, MA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Madeline Flaherty's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Madeline Flaherty affiliated with any hospitals?
According to CMS data, Madeline Flaherty is affiliated with Massachusetts General Hospital and Massachusetts Eye And Ear Infirmary -.
When was this NPI record last updated?
The NPPES record for Madeline Flaherty was last updated on December 2, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Madeline Flaherty, RN, FNP-BC · NPI 1619644176
Nurse Practitioner physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since August 24, 2021.
## Identity
- **NPI:** 1619644176 (Entity type: Individual)
- **Enumerated:** August 24, 2021
- **Primary specialty:** Nurse Practitioner · taxonomy 363L00000X
- **State license:** RN2337528 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 243 CHARLES ST, Boston, MA 02114-3096
- **Phone:** (617) 573-3223
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Massachusetts Eye And Ear Associates, Inc. (NPI 1932574332, Boston, MA); Mount Auburn Professional Services Inc (NPI 1992750996, Cambridge, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2019
## Record status
- **NPPES last updated:** December 2, 2025
- **Other identifiers:** Other RN2337528 (MA); Other 2021038520
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Source: [NPI Profile](https://npiprofile.com/npi/1619644176) · Data from the CMS NPPES public registry.